Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Defence Line of Amsterdam' has mentioned 'Concrete' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| The invention of the high-explosive shell and the percussion fuze, which allowed ordnance to explode on impact and dislodge brick fortifications easily, necessitated a change from masonry to concrete forts. | WIKI |
| The Dutch did not have the required experience yet using and building with concrete and so extensive tests had to be performed. | WIKI |
| Concrete structures were shelled with the heaviest artillery available at that time. | WIKI |
| The earlier ones were built of brick, the later of massed concrete. | UNESCO |
| They mark the shift from the conspicuous brick/stone casemated forts of the Montalembert tradition, in favour of the steel and concrete structures that were to be brought to their highest level of sophistication in the Maginot and Atlantic Wall fortifications. | UNESCO |
| This transition, with its experiments in the use of concrete and emphasis on the use of unreinforced concrete, is an episode in the history of European architecture of which material remains are only rarely preserved. | UNESCO |
| The Outstanding Universal Value is expressed in the authenticity of the design (the typology of forts, sluices, batteries, line ramparts), of the specific use of building materials (brick, unreinforced concrete, reinforced concrete), of the workmanship (meticulous construction apparent in its constructional condition and flawlessness), and of the structure in its setting (as an interconnected military functional system in the human-made landscape of the polders and the urbanised landscape). | UNESCO |